Boulder Mass Casualty Incident Fact Sheet

Posted on 03/26/2021 at 01:11 PM

Boulder Mass Casualty Incident Fact Sheet

Facts as of Friday morning, March 26, 2021

Number of agencies from local, state and federal: 26

Number of individuals from those agencies: 167

Number of hours worked: approximately more than 3,000 hours

Number of tips/leads: more than 223

Number of digital media devices collected: approximately 20

Number of interviews completed: 156

In less than 100 hours over four days, all of the above has occurred.

Agencies Involved in the Investigation:

Boulder Police Department

Boulder County Sheriff’s Office


Boulder Incident Management

Boulder OEM

Colorado Bureau of Investigation

City of Boulder

Colorado Department of Public Safety

Coroner’s Office



District Attorney’s Office


Gilpin County OEM


Longmont Police

Louisville Police

NCR Homeland Security

Timberline Fire Protection District

U.S. Attorney’s Office

Westminster Police Department


Detectives ask anyone with any information about this crime to submit them online at:

If you have images, video or other information, you can submit that to

You can also call the tipline at 1-800-CALL-FBI.